西洋参茎叶生药学研究

采用性状鉴别、显微鉴别、成分的理化鉴别及HPCL鉴别等方法，对五加科植物西洋参茎、叶进行系统的生药学研究。结果表明：西洋参茎叶主要化学成分为人参皂苷，人参皂苷Rb3含量为1．2％。西洋参茎叶粉末中具有草酸钙簇晶、非腺毛、导管旁伴有长方形薄壁细胞、气孔不定式、不等式等鉴别特征。本研究可以为西洋参茎、叶的鉴别，质量标准的制定及开发利用、扩大药源提供依据。

Pharmacognosy Study of the Stem and Leave of American Genseng

Pharmacognosy characters of the stems and leaves of American genseng (Panax quinquefolium) were studied by feature and microscopical identification, physical and chemical identification of the components, and HPCL method .The results showed that the main chemical component of the stems and leaves of American genseng was ginsenoside. The value of ginsenoside-Rb_3 as the determination norm of the content was 1.2%. The microscopical characters of calcium oxalate cluster crystal, nonglandular hair, rectangle parenchyma cell beside vessel, stomata anomocytic and anisocytic type were observed in the powder of the stems and leaves of American genseng. This will provide scientific basis for the identification of stems and leaves of American genseng, the determination of quality norm and its development and utilization. It will also enlarge the source of medicine.